LONDON — Andy Murray had all of Britain on edge for five sets.
Juan Martin del Potro only took five points to get the fans buzzing at Wimbledon.
Two victories in two very different matches Wednesday sent Murray and del Potro onto the semifinals at the All England Club.
Murray completed his seventh career comeback from two sets down to top Fernando Verdasco 4-6, 3-6, 6-1, 6-4, 7-5.
"Made some bad mistakes, poor choices on the court," Murray said. "And then, I turned it around really well after that."
Earlier on Centre Court, del Potro hyperextended his left knee and crumpled to the ground on the fifth point, but shook off the injury for a 6-2, 6-4, 7-6 (5) victory over No. 4 David Ferrer.
"To be honest, I didn't want to retire [being] in the quarters for first time at Wimbledon," del Potro said. "And that's the reason for continuing play. The doctors gave me good anti-inflammatories."
Del Potro's next match is Friday against No. 1 Novak Djokovic, who took down No. 7 Tomas Berdych 7-6 (5), 6-4, 6-3 on Court 1.
Murray will play No. 24 Jerzy Janowicz, a 7-5, 6-4, 6-4 winner over Lukasz Kubot in the first Grand Slam meeting between two Polish men.
Going against the 54th-ranked Verdasco, Murray certainly made things interesting for the British fans, looking for one of their own to call a Wimbledon champion for the first time in 77 years. He dropped the first two sets, unable to handle Verdasco's pinpoint serves that reached as high as 136 mph.
It was Murray's second comeback from two sets down at Wimbledon, adding to a 2008 victory over Richard Gasquet.
"Yeah, you're obviously concerned," Murray said. "You're more concerned about losing the match, not thinking so much that, I'm going to lose at Wimbledon. You're concerned how the match is going and that you may lose. But when you've been in that position a lot of times, you know how to think through it and not get too far ahead of yourself."